For many people, sleep seems to be the #1 productivity booster. Certainly, the research seems to suggest focus suffers significantly thanks to lack of sleep - not to mention IQ.
Needless to say there seem to be exceptions - Margaret Thatcher famously coped with 4 hours a night. It's been suggested that some people's ADRB1 expression continues while they're awake, which means they need less sleep. However, less sleep is also associated with dementia late in life.
Needless to say there seem to be exceptions - Margaret Thatcher famously coped with 4 hours a night. It's been suggested that some people's ADRB1 expression continues while they're awake, which means they need less sleep. However, less sleep is also associated with dementia late in life.